Dendranthema plant named ‘Ice Pink Igloo’

ABSTRACT

A new and distinct cultivar of  Dendranthema  plant named ‘Ice Pink Igloo’, characterized by its upright, outwardly spreading and uniformly mounded plant habit; freely branching habit; dense and full plant form; uniform and freely flowering habit; decorative-type inflorescences; bright red purple-colored ray florets; natural season flowering occurs about September 22 to 26 in Pennsylvania; and good garden performance and winter hardiness.

Botanical designation: Chrysanthemum X morifolium.

Cultivar denomination: ‘ICE PINK IGLOO’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct Dendranthema plant, botanically known as Chrysanthemum X morifolium, commercially grown as a perennial garden-type Dendranthema plant, and hereinafter referred to by the cultivar name ‘Ice Pink Igloo’.

The new Dendranthema is the product of a planned breeding program conducted by the Inventor in Bogota, Colombia and Smoketown, Pa. The objective of the breeding program is to create new perennial garden-type Dendranthema plants having uniformly mounding plant habit, inflorescences with desirable inflorescence forms, attractive ray and disc floret shapes and colors, winter hardiness and good garden performance.

The new Dendranthema plant originated from a cross-pollination made by the Inventor in 2009 in Bogota, Colombia, of a proprietary seedling selection of Chrysanthemum X morifolium identified as code number H0695, not patented, as the female, or seed, parent with Chrysanthemum X morifolium ‘Cool Yoigloo’, disclosed in U.S. Plant Pat. No. 20,225, as the male, or pollen, parent. The new Dendranthema plant was discovered and selected by the Inventor as a single flowering plant within the progeny of the stated cross-pollination in a controlled greenhouse environment in Smoketown, Pa. on Sep. 25, 2013.

Asexual reproduction of the new Dendranthema plant by terminal vegetative cuttings was first conducted in a controlled greenhouse environment in Smoketown, Pa. in February, 2014 and such asexual propagation has shown that the unique features of this new Dendranthema plant are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Dendranthema have not been observed under all possible combinations of environmental conditions and cultural practices. The phenotype may vary somewhat with variations in environmental conditions such as temperature, daylength and light intensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Ice Pink Igloo’. These characteristics in combination distinguish ‘Ice Pink Igloo’ as a new and distinct garden-type Dendranthema plant:

-   -   1. Upright, outwardly spreading and uniformly mounded plant         habit.     -   2. Freely branching habit; dense and full plant form.     -   3. Uniform and freely flowering habit.     -   4. Decorative-type inflorescences.     -   5. Bright red purple-colored ray florets.     -   6. Natural season flowering occurring about September 22 to 26         in Pennsylvania.     -   7. Good garden performance and winter hardiness.

In side-by-side comparisons, plants of the new Dendranthema differ from plants of the female parent selection primarily in ray floret color as plants of the female parent selection have bronze-colored ray florets. In addition, plants of the new Dendranthema are more outwardly spreading and flower later than plants of the female parent selection.

In side-by-side comparisons, plants of the new Dendranthema differ primarily from plants of the male parent, ‘Cool Yoigloo’, in the following characteristics:

-   -   1. Plants of the new Dendranthema are larger and more outwardly         spreading than plants of ‘Cool Yoigloo’.     -   2. Inflorescences of plants of the new Dendranthema have fewer         disc florets than inflorescences of plants of ‘Cool Yoigloo’.     -   3. Inflorescences of plants of the new Dendranthema have better         keeping quality than inflorescences of plants of ‘Cool Yoigloo’.

Plants of the new Dendranthema can be compared to plants of Chrysanthemum X morifolium ‘Dainty Pink Igloo’, disclosed in U.S. Plant Pat. No. 29,174. In side-by-side comparisons, plants of the new Dendranthema differ from plants of ‘Dainty Pink Igloo’ in the following characteristics:

-   -   1. Plants of the new Dendranthema are larger and more outwardly         spreading than plants of ‘Dainty Pink Igloo’.     -   2. Plants of the new Dendranthema flower later than plants of         ‘Dainty Pink Igloo’.     -   3. Inflorescences of plants of the new Dendranthema are larger         than inflorescences of plants of ‘Dainty Pink Igloo’.     -   4. Plants of the new Dendranthema and ‘Dainty Pink Igloo’ differ         in ray flower color as plants of ‘Dainty Pink Igloo’ have         lighter-colored ray florets.     -   5. Inflorescences of plants of the new Dendranthema have fewer         disc florets than inflorescences of plants of ‘Dainty Pink         Igloo’.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs illustrate the overall appearance of the new Dendranthema showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Dendranthema plant.

The photograph at the bottom of the sheet is a side perspective view of a typical flowering plant of ‘Ice Pink Igloo’ grown in a container.

The photograph at the top of the sheet is a close-up view of a typical flowering plant of ‘Ice Pink Igloo’.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations and measurements describe plants grown during the late summer and early autumn in 20-cm containers under full sunlight conditions in an outdoor nursery in Hermitage, Pa. and under cultural practices typical of commercial garden-type Dendranthema production. During the production of the plants, day temperatures averaged 26° C. and night temperatures averaged 15.6° C. Plants were 15 weeks old when the photographs and description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2007 Edition, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Chrysanthemum X morifolium ‘Ice Pink     Igloo’. -   Parentage:     -   -   Female, or seed, parent.—Proprietary selection of             Chrysanthemum X morifolium identified as code number H0695,             not patented.         -   Male, or pollen, parent.—Chrysanthemum X morifolium ‘Cool             Yoigloo’, disclosed in U.S. Plant Pat. No. 20,225. -   Propagation:     -   -   Type.—Terminal vegetative cuttings.         -   Time to initiate roots, summer and winter.—About two weeks.         -   Root description.—Fine, fibrous; typically white in color,             actual color of the roots is dependent on substrate             composition, water quality, fertilizer type and formulation,             substrate temperature and physiological age of roots.         -   Rooting habit.—Freely branching, dense. -   Plant description:     -   -   Plant and growth habit.—Perennial garden-type Dendranthema             plant with decorative-type inflorescences; upright,             outwardly spreading and uniformly mounding plant habit;             strong and vigorous growth habit.         -   Branching habit.—Freely branching habit, primary lateral             branches developing at potentially every node, each primary             lateral with multiple secondary and tertiary branches; dense             and full plant form; pinching is not required.         -   Plant height, soil level to top of foliar plane.—About 30             cm.         -   Plant height, soil level to top of floral plane.—About 32 cm             to 33 cm.         -   Plant width.—About 72 cm.         -   Lateral branches.—Length: About 30 cm. Diameter: About 4 mm.             Internode length: About 3 cm. Strength: Strong. Aspect:             About 45° to 75° from vertical. Texture and luster:             Pubescent, minute; longitudinally ridged; matte. Color:             Developing, close to 148B; developed, close to 146A.         -   Leaves.—Arrangement: Alternate, simple. Length: About 5 cm.             Width: About 3.6 cm. Shape: Ovate with rounded lobes. Apex:             Broadly acute. Base: Truncate. Margin: Palmately lobed,             medium sinuses between lateral lobes mostly parallel.             Texture and luster, upper and lower surfaces: Pubescent,             minute; veins prominent on lower surface; matte. Venation             pattern: Pinnate. Color: Developing leaves, upper surface:             Close to 146A. Developing leaves, lower surface: Close to             147B. Fully expanded leaves, upper surface: Close to 146A;             venation, close to 146B. Fully expanded leaves, lower             surface: Close to 146B; venation, close to 146B. Petioles:             Length: About 1.2 cm. Diameter: About 3 mm. Texture and             luster, upper and lower surfaces: Pubescent, minute; matte.             Color, upper and lower surfaces: Close to 146B. -   Inflorescence description:     -   -   Type and arrangement.—Decorative-type inflorescence form             with elongated oblong-shaped ray florets; disc and ray             florets arranged acropetally on a capitulum; inflorescences             face mostly upright and held above, within and beyond the             foliar plane on strong peduncles.         -   Fragrance.—Fragrant; spicy and sour.         -   Flowering response.—Under natural season conditions, plants             flower about September 22 to 26 in Pennsylvania.         -   Postproduction longevity.—Inflorescences maintain good color             and substance for about three to six weeks on the plant             depending on temperatures; inflorescences persistent.         -   Quantity of inflorescences.—Freely flowering habit with             about 68 inflorescences developing per lateral branch and             more than 600 inflorescences per plant.         -   Inflorescence buds.—Height: About 1 cm. Diameter: About             8 mm. Shape: Ovoid. Texture and luster: Pubescent, minute;             matte. Color: Close to 70A.         -   Inflorescence size.—Diameter: About 3.4 cm. Depth (height):             About 1.5 cm. Disc diameter: About 3 mm. Receptacle             diameter: About 1.5 cm. Receptacle height: About 5 mm.         -   Receptacle shape.—Rounded, shallow bowl-shaped.         -   Receptacle color.—Close to 148A to 148B.         -   Ray florets.—Quantity and arrangement: About 212 ray florets             develop per inflorescence and arranged in about 18 whorls.             Length: About 1.7 cm. Width: About 4 mm. Shape: Elongated             oblong. Apex: Obtuse to slightly emarginate. Base: Attenuate             and then fused into a short tube. Margin: Entire.             Orientation: Initially upright; with development, about 15°             to 65° from vertical; apices tend to curve upwardly. Texture             and luster, upper and lower surfaces: Smooth, glabrous;             longitudinally ribbed; matte. Color: When opening, upper             surface: Close to 70A. When opening, lower surface: Close to             N78D. Fully opened, upper surface: Close to 72B; venation,             close to 72B; color does not change with development. Fully             opened, lower surface: Close to N80C to N80D; venation,             close to N80C; color does not change with development.         -   Disc florets.—Quantity and arrangement: About ten fused disc             florets develop per inflorescence, massed at the center of             the capitulum and arranged in several whorls; inconspicuous.             Length: About 4 mm. Diameter: About 1 mm. Shape: Tubular,             elongated. Apex: Five-pointed, acute apices. Texture and             luster, inner and outer surfaces: Smooth, glabrous; matte.             Color, developing, inner and outer surfaces: Close to 15A.             Color, developed, inner and outer surfaces: Close to 15A;             venation, close to 15A.         -   Phyllaries.—Quantity and arrangement: About 26 phyllaries             develop per inflorescence and arranged in about four whorls.             Length: About 5 mm. Width: About 3 mm. Shape: Elliptical.             Apex: Acute. Base: Truncate. Margin: Entire; membraneous.             Texture and luster, upper surface: Smooth, glabrous; glossy.             Texture and luster, lower surface: Pubescent, minute; matte.             Color, upper surface: Close to 146B. Color, lower surface:             Close to 148A to 148B.         -   Peduncles.—Length, terminal peduncle: About 5.5 cm. Length,             third peduncle: About 6.7 cm. Diameter, terminal peduncle:             About 1 mm. Diameter, third peduncle: About 1 mm. Angle,             terminal peduncle: Mostly upright. Angle, third peduncle:             About 45° from stem axis. Strength: Strong. Texture and             luster: Pubescent, minute; matte. Color: Close to 148B.         -   Reproductive organs.—Androecium (present on disc florets             only): Stamen number: Five per floret. Filament length:             About 2.5 mm. Filament color: Close to 157B. Anther length:             Less than 1 mm. Anther diameter: About 2 mm. Anther shape:             Narrowly oblong. Anther color: Close to 16A. Pollen amount:             Scarce. Pollen color: Close to 16A. Gynoecium (present on             ray and disc florets): Pistil length: About 4 mm. Stigma             diameter: Less than 1 mm. Stigma shape: Bi-parted. Stigma             color: Close to 16A. Style length: About 2 mm. Style color:             Close to 157D. Ovary color: Close to NN155B.         -   Seeds and fruits.—Seed and fruit production has not been             observed on plants of the new Dendranthema to date. -   Disease & pest resistance: Resistance to pathogens and pests common     to Dendranthema plants has not been observed on plants of the new     Dendranthema grown under commercial production conditions to date. -   Garden performance & temperature tolerance: Plants of the new     Dendranthema have demonstrated excellent garden performance, are     hardy to USDA Zone 5 and tolerate high temperatures about 37.8° C. 

It is claimed:
 1. A new and distinct Dendranthema plant named ‘Ice Pink Igloo’ as illustrated and described. 